Threats / Adobe / CVE-2017-3066
CVE-2017-3066
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Adobe ColdFusion vulnerability
Adobe ColdFusion contains a deserialization vulnerability in Apache BlazeDS that permits arbitrary code execution through unsafe object deserialization.
Verdict
Today item — known-exploited.
An unauthenticated attacker can exploit unsafe deserialization in ColdFusion's BlazeDS library to execute arbitrary code on affected systems. This vulnerability has been actively exploited in the wild.
CISA KEV Yes · 2025-02-244EPSS 0.90597 (verify live)5Exploit Weaponized · public PoC6CVSS 9.8 (CISA)3CISA SSVC Exploitation: active · Automatable: yes · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-02-24).
Probability (EPSS)
EPSS 0.90597 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: Adobe, ColdFusion. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-502 Deserialization of Untrusted Data — weakness family: Injection.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 2860 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious serialized Java object and send it to the ColdFusion BlazeDS endpoint.
Business
The organization's ColdFusion server processes untrusted serialized data without validation.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I trigger deserialization of my payload, causing arbitrary code to execute with ColdFusion process privileges.
Business
Attackers gain code execution capability on production infrastructure.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistence and move laterally through the network to access sensitive data or systems.
Business
The breach expands beyond the initial compromised server, affecting data confidentiality and system integrity.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05